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Recap – Solid-state Battery Summit – August 13-15, 2024, Chicago, IL (USA)
Posted on 2024-08-21
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At last week's 'Solid-State Battery Summit' in Chicago, very nice interactions between academia and industry took place.
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All-solid-state battery cells are not anymore pursued in a dogmatic fashion. Instead, the importance is being recognized to consider cells in terms of negative electrode / anolyte / separator / catholyte / positive electrode, deciding which layers need to be solid and which may contain some liquids, at least for cells that will be launched next into the market (semi-solid cells).
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A key trend that we thus far only identified in the patent literature with our AI approach is the employment of SUPRAMOLECULAR POLYMERS, which self-assemble into repeating nanoscale structures with ion-conducting nano-channels.
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Two recently patented structures by Nuvvon (New Jersey startup) and Dynanonic (key supplier of CATL) illustrate how chemical structures that contain siloxane and ethylene oxide groups result in favorable ionic conductivity.
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Dynanonic's claimed 1.8 × 10-2 S/cm constitutes an extraordinary level for a polymer, even while Nuvvon's reported value of ≈10-3 S/cm is also excellent compared to the prior patent literature.
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SAXS (small-angle X-ray scattering) is a key characterization technique to study nano-scale self-assembly of supramolecular polymers, employed by Dynanonic.
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This post was also published on LinkedIn.
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